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What are the uses and functions of magnets?
1. History of magnets
The magnet was not invented by man. It is natural magnetite.
The ancient greeks and Chinese discovered a naturally magnetized stone in nature and called it a "magnet".
The stone magically picks up small pieces of iron and always points in the same direction when it swings at will.
Early navigators used the magnet as a compass to navigate at sea.
It was the Chinese who discovered and used magnets in the early days, making a "compass" out of magnets, one of China's four great inventions.
What are the USES and functions of magnets
The composition of the magnet
Magnet composition is iron, cobalt, nickel and other atoms, the internal structure of the atom is more special, itself has a magnetic moment.
Magnets generate magnetic fields and have the properties of attracting ferromagnetic materials such as iron, nickel, cobalt, etc.
Three, kinds of magnets
Shape class magnet: square shaped magnets, magnet, tile shaped magnets, cylindrical magnet, ring magnets, wafer magnets, magnet, magnet, magnet, magnetic frame attribute class magnet: samarium cobalt magnet, ndfeb magnets, powerful magnets, ferrite magnets, magnet, alnico magnets, iron chromium cobalt industry class magnet: magnet magnetic components, motor, plastic rubber magnets, magnetic, and so on.
Permanent magnet and soft magnet, permanent magnet is plus strong magnetic field, make magnetic material spin and electron angular momentum into a fixed direction arrangement, soft magnetic is plus electricity.
(also a way to add magnetism) removing soft iron by electric current will slowly lose its magnetism.
What are the USES and functions of magnets
Four, the use of magnets
Magnet is widely used in industry, medicine, astronomy, military and other industries.
Here are some of the USES of magnets:
1, ndfeb permanent magnet
Ndfeb permanent magnet is a modern permanent magnet with strong magnetism, which is widely used.
It is mainly used in electroacoustic, permanent magnet motor, communication, automotive electronics, magnetic machinery, aerospace, computers, household appliances, medical equipment, office automation, toys, packaging boxes, leather products, magnetic jewelry and other fields.
2. Permanent magnet ferrite
Permanent magnet ferrite is used as constant magnet in electricity meter, generator, telephone, loudspeaker, television and microwave device, also used in recording device, pickup, loudspeaker, magnetic core of various instrument, used in radar, communication, navigation, telemetry and other electronic equipment.
Samarium cobalt magnet
Samarium cobalt magnet works at temperatures up to 300 degrees and has corrosion resistance and oxidation resistance. It is widely used in detectors, generators, radar, meters and other precision science and technology fields.
4, alnico magnet
Alnico magnet is resistant to high temperature and corrosion. It is mainly used in motors, sensors, medical instruments, hand tools, tweeters and various instruments.
5. Rubber magnet
Rubber magnet can be divided into same sex and opposite sex, same sex suction force is weak, mainly used for publicity (refrigerator stickers, car stickers, etc.), decorative gifts, refrigerator magnets, toys, teaching materials, etc. Opposite-sex magnet force is strong, can be used for small motors, sensors, magnetic adsorption supplies, etc.
What are the USES and functions of magnets
Five, the action of the magnet
(I) physical effects
1. Compass;
2. Attract light and small objects;
3, electromagnet can do electromagnetic relay;
4. Electric motor;
5. Generator;
6. Electroacoustic;
7. Magnetic therapy;
8. Magnetic levitation;
9. Mri.
(2) therapeutic effect of food
1, magnetic salt, flat;
Liver and kidney channels;
Quality is important but health is.
2, with the liver potential Yang, cong ear and eyes, calm nerves, na qi asthma effect.
3. It is mainly used for treating vertigo of liver Yang, insomnia with palpitation, vision fainting, tinnitus and deafness, and dyspnea of kidney deficiency.
The magnet was not invented by man. It is natural magnetite.
The ancient greeks and Chinese discovered a naturally magnetized stone in nature and called it a "magnet".
The stone magically picks up small pieces of iron and always points in the same direction when it swings at will.
Early navigators used the magnet as a compass to navigate at sea.
It was the Chinese who discovered and used magnets in the early days, making a "compass" out of magnets, one of China's four great inventions.
What are the USES and functions of magnets
The composition of the magnet
Magnet composition is iron, cobalt, nickel and other atoms, the internal structure of the atom is more special, itself has a magnetic moment.
Magnets generate magnetic fields and have the properties of attracting ferromagnetic materials such as iron, nickel, cobalt, etc.
Three, kinds of magnets
Shape class magnet: square shaped magnets, magnet, tile shaped magnets, cylindrical magnet, ring magnets, wafer magnets, magnet, magnet, magnet, magnetic frame attribute class magnet: samarium cobalt magnet, ndfeb magnets, powerful magnets, ferrite magnets, magnet, alnico magnets, iron chromium cobalt industry class magnet: magnet magnetic components, motor, plastic rubber magnets, magnetic, and so on.
Permanent magnet and soft magnet, permanent magnet is plus strong magnetic field, make magnetic material spin and electron angular momentum into a fixed direction arrangement, soft magnetic is plus electricity.
(also a way to add magnetism) removing soft iron by electric current will slowly lose its magnetism.
What are the USES and functions of magnets
Four, the use of magnets
Magnet is widely used in industry, medicine, astronomy, military and other industries.
Here are some of the USES of magnets:
1, ndfeb permanent magnet
Ndfeb permanent magnet is a modern permanent magnet with strong magnetism, which is widely used.
It is mainly used in electroacoustic, permanent magnet motor, communication, automotive electronics, magnetic machinery, aerospace, computers, household appliances, medical equipment, office automation, toys, packaging boxes, leather products, magnetic jewelry and other fields.
2. Permanent magnet ferrite
Permanent magnet ferrite is used as constant magnet in electricity meter, generator, telephone, loudspeaker, television and microwave device, also used in recording device, pickup, loudspeaker, magnetic core of various instrument, used in radar, communication, navigation, telemetry and other electronic equipment.
Samarium cobalt magnet
Samarium cobalt magnet works at temperatures up to 300 degrees and has corrosion resistance and oxidation resistance. It is widely used in detectors, generators, radar, meters and other precision science and technology fields.
4, alnico magnet
Alnico magnet is resistant to high temperature and corrosion. It is mainly used in motors, sensors, medical instruments, hand tools, tweeters and various instruments.
5. Rubber magnet
Rubber magnet can be divided into same sex and opposite sex, same sex suction force is weak, mainly used for publicity (refrigerator stickers, car stickers, etc.), decorative gifts, refrigerator magnets, toys, teaching materials, etc. Opposite-sex magnet force is strong, can be used for small motors, sensors, magnetic adsorption supplies, etc.
What are the USES and functions of magnets
Five, the action of the magnet
(I) physical effects
1. Compass;
2. Attract light and small objects;
3, electromagnet can do electromagnetic relay;
4. Electric motor;
5. Generator;
6. Electroacoustic;
7. Magnetic therapy;
8. Magnetic levitation;
9. Mri.
(2) therapeutic effect of food
1, magnetic salt, flat;
Liver and kidney channels;
Quality is important but health is.
2, with the liver potential Yang, cong ear and eyes, calm nerves, na qi asthma effect.
3. It is mainly used for treating vertigo of liver Yang, insomnia with palpitation, vision fainting, tinnitus and deafness, and dyspnea of kidney deficiency.
